Transcript 19-05-0038-00-0000-Chirp-Spread-Spectrum-Coexistence.ppt

September 2005
doc.: IEEE 802.19-05/0038r0
Chirp Spread Spectrum Coexistence
Date: 2005-09-19
Authors:
Name
Company
Address
Phone
E-mail
Kyung-Kuk Lee
Orthotron, Co
[email protected]
John Lampe
Nanotron
[email protected]
Notice: This document has been prepared to assist IEEE 802.19. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in
this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
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others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.19.
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"IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents
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Submission
Slide 1
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
Reference
• This 802.19 document that is a copy of
the original 802.15 document, number
802.15-05/0451r2
Submission
Slide 2
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
CSS-Coexistence
by
Kyung-Kuk Lee / Jong-Wha Chong, Sang-Hun Yoon,
Jin-Doo Jung, Sang-Dong Kim, Young-Sam Kim
Orthotron Co., Ltd. / Hanyang Univ., Korea
[email protected]
John Lampe, Rainer Hach, and Lars Menzer
Nanotron Technologies GmbH, Germany
[email protected]
Submission
Slide 3
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
Table of contents
 Strategy
 Assumptions
 BER Results for IEEE802 Radios
 15.4a CSS interfering with 11b
 15.4a CSS interfered by 11b
 15.4a CSS interfering with 15.1
 15.4a CSS interfered by 15.1
 15.4a CSS interfering with 15.3
 15.4a CSS interfered by 15.3
 15.4a CSS interfering with 15.4-2003
 15.4a CSS interfered by 15.4-2003
Submission
Slide 4
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
Strategy
•
Define assumptions for interfering device
– TX spectral mask
– TX power
– Hopping probabilties (if any)
– Duty cycle
•
Define assumptions for interfered Rx device
– Packet size
– RX input filter (bandwidth and shape)
– BER as function of interference plus noise power
– Calculate the interference power for different frequency and distance scenarios
•
Assume the receiver of the interfered system to receive 10 dB above its specified
sensitivity
– Calculate the SINR for the different frequency and distance scenarios
– Calculate the resulting BER
– Calculate the resulting PER
– Visualize the PER for the different frequency and distance scenarios
Submission
Slide 5
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
Assumptions
• As far as not stated otherwise all assumptions made in
IEEE Std 802.15.4-2003 Annex E are considered valid
Submission
Slide 6
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
BER Results for IEEE802
IEEE 802 Radio BER-vs-SINR
0
10
802.11b(1Mbps)
802.11b(2Mbps)
802.11b(5.5Mbps)
802.11b(11Mbps)
802.15.1
802.15.3(22Mbps)
802.15.4
802.15.4a(1Mbps)
802.15.4a(250Kbps)
-1
10
-2
Bit Error Rate
10
-3
10
-4
10
-5
10
-6
10
-15
-10
-5
0
5
10
15
SINR [dB]
Submission
Slide 7
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
Next Steps on BER calculation
• Replace approximation based BER calculation by
analytical formula
Submission
Slide 8
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
CSS interfering with 11b
•
•
•
Tx Power of interferer: 0 dBm
Rx Sensitivity of 11b : -76 dBm
Rx Data Packet Size : 1024 Byte
Submission
Slide 9
Kyung-Kuk Lee, Orthotron Co.
September 2005
Submission
doc.: IEEE 802.19-05/0038r0
Slide 10
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
CSS interfered by 11b
•
•
•
Submission
Tx Power of interferer: 14 dBm
Rx Sensitivity of CSS: -80 dBm
Rx Data Packet Size :
32 Byte
Slide 11
Kyung-Kuk Lee, Orthotron Co.
September 2005
Submission
doc.: IEEE 802.19-05/0038r0
Slide 12
Kyung-Kuk Lee, Orthotron Co.
September 2005
•
•
•
•
doc.: IEEE 802.19-05/0038r0
CSS interfering with 15.1
Tx Power of interferer: 0 dBm
Rx Sensitivity of 15.1: - 70 dBm
Rx Data Packet Size : 1024 Byte
Rx Hopping sequence: 15 inband, 54 out of band
Submission
Slide 13
Kyung-Kuk Lee, Orthotron Co.
September 2005
Submission
doc.: IEEE 802.19-05/0038r0
Slide 14
Kyung-Kuk Lee, Orthotron Co.
September 2005
•
•
•
•
doc.: IEEE 802.19-05/0038r0
CSS interfered by 15.1
Tx Power of interferer: 0 dBm
Rx Sensitivity of CSS: -80 dBm
Rx Data Packet Size :
32 Byte
Tx Hopping sequence: 15 inband, 54 out of band
Submission
Slide 15
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
15.1-“duty cycle“ not included!
Submission
Slide 16
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
Next steps on 15.1
Analyze how to include 15.1-“duty cycle“
Submission
Slide 17
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
CSS interfering with 15.3
•
•
•
Tx Power of interferer: 0 dBm
Rx Sensitivity of 15.3: -75 dBm
Rx Data Packet Size : 1024 Byte
Submission
Slide 18
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
CSS interfering with 15.3
Submission
Slide 19
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
CSS interfered by 15.3
•
•
•
Tx Power of interferer: 8 dBm
Rx Sensitivity of CSS: -80 dBm
Rx Data Packet Size : 32 Byte
Submission
Slide 20
Kyung-Kuk Lee, Orthotron Co.
September 2005
Submission
doc.: IEEE 802.19-05/0038r0
Slide 21
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
CSS interfering with 15.4
•
•
•
Tx Power of interferer: 0 dBm
Rx Sensitivity of 15.4: -85 dBm
Rx Data Packet Size : 22 Byte
Submission
Slide 22
Kyung-Kuk Lee, Orthotron Co.
September 2005
Submission
doc.: IEEE 802.19-05/0038r0
Slide 23
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
CSS interfered by 15.4
•
•
•
Tx Power of interferer: 0 dBm
Rx Sensitivity of CSS: -80 dBm
Rx Data Packet Size :
32 Byte
Submission
Slide 24
Kyung-Kuk Lee, Orthotron Co.
September 2005
Submission
doc.: IEEE 802.19-05/0038r0
Slide 25
Kyung-Kuk Lee, Orthotron Co.
September 2005
doc.: IEEE 802.19-05/0038r0
General next steps
• Validate assumptions on spectral TX shapes and RX
input filters
Submission
Slide 26
Kyung-Kuk Lee, Orthotron Co.